Flanging machine



May 9, 1933.

E. PRESTON ET AL FLANGING MACHINE Filed Oct. 27, 1930 2 Sheets-Sheet 1ATTORAEY.

May 9, 1933. E. PRESTON ET AL FLANGING MACHINE 2 Sheets-Shet 2 Filed0013a 27, 1930 Patented May 9, 1933 UNITED STATES PATENT MISSOURI, ACORPORATION OIE MISSOURI FLANGHG M:AQH NE Application fi1ed.0ctober 27,1930., Serial No. 491,568.

the number of moving parts of such a machine, making the machine botheasier of production and simpler et operation,

It is a furtl1er object of this invention t0 construct a machine thatWill ont a plate and flange the ed e of the plate in one operatien andwhich 1s equally well adapted to perform this function on various shapesof plates withont the necessity of extensive changes in the machine.

- In terms of broad inclusion the invention oontem lates constructing aform t0 corres on With the shape of the finishe;d plate, Wit anupstanding fiange attached to the form, said flange havingan interiorperi hery parallel to the edge of the finished p ate the forming andcutting roller contacts the 0 and an outer peri'phery corresponding tothe said edge, having the plate movable and having the drive member forthe plate contact the inner periphery of the flange while outerperiphery thereof.

Other important features and objects of the invention Will be apparentas the description proceeds.

In the accompanying drawings:

Fig. 1 is a perspective fragmentary view of a machine embodying ourinvention, part of a shield being broken away to better show a movablemember cooperating with a flange turning disk to out a blank.

Fig. 2 is a perspective view of a metal blank and a feeder disk shownspaced from the blank for providing a keeper flange whereby the blankmay be held in operatiVe relation with forming and cutting members.

Fig. 3 is a side elevation of the portion of the machine which the edgeportion of the blank moves while being formed, the blank and keeper diskbein g shown fragmentarily and in section.

Fig.4 is a section through a reciprocttfig roll member, adjacentportions of a blank, keeper and die members heing shown fragmentarily.

Fig. 5 is a sectionon the line 55, Fig. 4. Referring in detail tothedrawings: 1 designates abase, 2 a bed mounted on the base, and having' asmooth upper surface 3, and 421 snperstructure rising from the basehaving an ar1n .or head 5 projecting from to provide a recess6 foroperating elements presently described. the whole comprising a frame foroperating elements later described. Fixedto the vertical front face ofthe base by bolts 9 is a bracket or 'bearing 10 havin a.tbular portion11 forming a Vertical Journal or channel for a rotative shaft 12 havingan enlarged cylindrical head 13 QOpliSiDg an anvil or die menibel Whichrests on and may rotate over the upper en face of the baiing member 10.

A :forming and cutting member 14 Comprising a disk or Wheel comprising aflanging rol ler having substantial th1clgness and a peripheral edgeface 15 tapenng from a rear cutting edge 16 to the front or outer face 1of the dis,k,.as clearly shown in Fig.

lf'rame. The mechanism is adapted to move the disk adjacentthe p ripheryof the die member 13 to cutand/or. turn a fiange on a blank 19 (Fig. 2),having a peripheral portion supported by the .anvil 13 as best shown inFig. 3 and prese'ntly descr1hed. The disk support may linclude structure-ordinarily provided for flanglng machines for power operation to.rotate the disk and move the bearing box, and is therefofc ngt shown indetail.

Extending forWardly frorn thebase her neath the die support 10 is a -supplen 1e ntal bed or frame 20 Providd witha slide rail .21 onWhich acarriage 22.may move towztrd or away from the machine trame. A table: like blank support 23 is mounted on theflcarllage d .t d 1as a iaHy in rgi tra 50 forwardly over'the bed and spaced therev ported on the bed inengagement vvith the forming disk, I7 attach a strip 28 to the blankacross the midpoint ofthe design,

preferably by welding indicated at 29, and mount a latching finger. 30rotatively on the strip, andyprovide a keeper plate 31 hav1ng a slot 33to receive the strip vvhereby the plate may be mounted on the blank inface to face relation therewith, and the latching fi1iger may be rotatedover the upper face -of the}plate to latch the keeper to the blank.

Raised ribs or bosses 34 surr.ounding the slot form seats for thelatching finger.

The plate 31 is provided with an upwardly extending flange or rib 35 atits edge, having outer and inner walls or peripheries conforming to thecontour of the design. rep

resented by the dotted line, whereby a retaining roll or wheel 37presently described,

may hold the blank.

The roll 37 is mounted on the lower end of shaft 38 rotatively mountedin a bracket or head 39 fixedto the neck of the frame, to engage the endface ofthe roll vvith the keeper plate and locate the cylindrical' faceof the roll in a position to receivethe inner Wall of the fiange andform a stop, as Well shown in Fig; 3. The outer wall of the fiange isthus helcl to move in a path adjacent the outer face 17 of the disk 14,whereby the portion of the blank which projects beyond the keeper flangewill move beneath the f.orming disk under frictional engagement of thedisk With the blank.

The roll 37 is mOved toWard and away from the die 13 by a lever 40pivoted to the frame neck and having alcrank 'arm 41 'operating-in aneccentric yoke 42 on'the braCk- The axes of the roll 37 and Shaft 38 arealigned jWith the transvei*se diameterof the die 13 but offset laterallyfrom the diameter of the die'that extends on the longitudinal axis ofthe machine, and thus offset laterallv from the axis .of the diskanddisk-supportmg shaft, as best shown in Fig. 1. The roll thus does notengage a point on theinner wall of the fiange opposite the verticaldiameter of the forming disk, thus avoiding tendency of the blank topivot and move While being operated on, as Would occur if the flangeWere pinched between the disk and the rol 65 -Chine toWard and'aWay'from the die member Rciprocabllongitudinally of the maof theblank.

13 is a backing member or head 44, compr1s1ng a roll on the outer orfront end of a shaft 45 slidable and rotative in spaced bearings 46 and47 fixed to the bed loy ap- V propriate fastening means such as bolts,the roll being adapted to form a cutting edge t0 cooperate with thecutting edge of the forming disk 14 as shoxvn in Fig. 4, to back up theblank and enable the cutting edge 16 of the disk t0 sever fragments fromthe blank and thus provide a blank having a desired outline orperiphery.

The rear bearing 47 extends laterally to the edge of the bed, and hasrearwardly extending anus 48, 49 and 50 provided with bearing portions51 for a shaft 52, having a cam-like cylindrical portion 53 of reduceddiameter offset from the axis of the shaft and operating on the rear endof the shaft 45 for reciprocating the roll 44 toward and away from thedie member 13.

The shaft portion 53 as shoWn in Figs. 4 and 5, operates in a yoke-likemember 54 fiXed to the rear side of a block 55 having a forwardlyprcsented recssintowhich the rednced end of the shaft 45extends. Aballrace56 mounted in a groove in the recess, and a race ring 57 fixed tothe rednced end of the shaft, hold halls to provide bearings in whichthe shaftend rotates, a swaged head 58 on the shait engaging the racering, and a ring 59threadedly fixed in the outer end of the recessietaining the race ring. V

Attention is called to the oke member 54 which preferably Comprises aU'shaped meni ber including arms60'and 61 having end faces engaging therear face of the bloc]: 55

and fixed thereto by stud bolts 62, the afms being spaced a distancesubstantially equal to the diameter of the shaft 52 to form theshaft-recciving opening or recess 63. The lei1gth of the arms is limitedto space the bottom 64 of the recess from the rear face of the blok 55 adistance substantially equal to, the. diameter of the cam portion 53 ofthe shaft 52, Whereby the cam m'ay move vertically in the recesS uponrotation of the shaft, but Will bear against either the bot tom 64 orthe rear face of the block.

A crank 65 exterior to the machine is provided for operating the shaftto shift the backing membel.

In using the invention, a keeper plate may be provided having a flan'geconforming to the outline or periphery of a blank when the blank isfianged, and may be mounted on a blank in the manner indicated in Fig.

2. The dotted, line on the blank .represents the contour of, the keeperfiange and the blank is to be out on a line spaced from the dotted lineto provide the peripheral flange The blank and ke f fiange securedtogether by the strip and tongue are then mounted on the circle disk,and the carriage moved to locate the edge portion of the blank on thedie member 13.

T lie roll 87 is then lowered to rest on the keeper plate and to engagethe keepe'r flange, to hold the plates on the die member 18 and hold theblank for movement beneath the cutting disk.

The backing member is then shifted to the position shown in Fig. 4wherein its end face is substantially aligned but spaced slightly awayfrom the inner face of the disk.

The disk is then lowered to engage the blank and operated to sever therim portion of the blank, the keeper and blank being moved rotativelydue to rotation of the forming disk, and ability of the backing member,die 13 and keeper roll to rotate.

When the blank has moved beneath the forming disk sufliciently tocomplete the outline shape of the blank, the backing member is retractedand the forming disk is further depressed by slow increments throughopera tion of the power mechanism. Rotation of the disk in frictionalengagement with the projecting flange of the blank causes the blank torotate, and the disk thus progres sively bends and forms the peripheralporfion of the blank into a flange as illustratecl in Fig. 3.

Attention is called to the fact that the first effect of depression ofthe forming disk after the blank has been ont, is against the extrememargin of the projecting fiange of the blank nntil the bevel of the diskis in face to face engagement with the upper face of the fiange, at suchpoint the flange having the appearance shown in Fig. 1.

Continued depression of the formingdisk Will operate against the innerportion of the blank adjacent the body of the plate and adjacent the dieto and eventnally the onter end face of the disk Will move slidably overthe inclined flange and thus press and form the fiange against thecylindrical face of the die member 13.

The formed blank may be easily removed from the keeper plate, and thelatching strip removed therefrom if desired.

Attention is called to the fact that the thickness of the flanging andcutting disk is snbstantially equal to the space between the anvilroller or die 13 and the cntting roll 44 when the latter is advanced,whereby the disk and roll 44 may form opposed cutting edges and the diskmay move clownwardly substantiall' in engagement with the front fiatface of the roll. The roll 44 is however, preferably retracted after thecutting operation to avoid undue resistance to the slow clownwardflanging movement of the disk, which may effect several completerotations of the plate and blank before the flanging operation iscompleted.

bend the fiange further The cutting roll 44 is locked in cither outtingor retracted position by reason of being on dead conter in each of saidpositions, and the lever handle operates on the cam p01- tionof theroll-reciprocating shaft as on the dead center position.

What We cla1m and desire to secure by Letters Patent 1s:

including a frame, means for supporting a blank on the frame, a flangingwheel havmg a cutting edge and 1neans movable on the frame forsupporting said fianging Wheel,

1. In apparatus of the character described" L] a cutting roll, a shaftrotatively supporting said cntting roll, and 1neahs including a yokeconnected with the shaft for effecting reciprocation of the roll intoand out of cooperative cutting relation with said flanging Wheel;

2. In apparatus of the character described including. a frame and meansinclnding an anvil for supporting a blank on the frarne, a rotativefianging wheel having a bevel edge face forming a cutting edge, 'means90 movable vertically on the frame for supporting said wheel, a rollreciprocable on the frame into and out of cooperative outting relationwith said c1itting edge, a shaft rotatively 'supporting said roll,brackets supporting the shaft, and means1ncluding a yoke connected withthe shaft for effecting reciprocation of the roll. r

3. In apparatus of the character described,

means for rotatwely supporting a blank in:

horizontal position, a r1ng fixedto the blank, an anv1l, meansengageable with the inner face of Lsa1d ring for controlhng the path ofmovement of the per1phery of the blank,

movable means for supporting the periph- E eral portion. of the blank,means for movmg said movable means into and out of blank supportingposition, and means operable successively for cntting and turning theperipheral portion of the blank. 4. In apparatus of the characterdescribed, a frame, an anvil roller rotatably mounted on the frame, aretaining roller cooperating with the anvil roller to retain a worksheet therebetween, a forming roller associated with the anvil rollerand having a cutting ec go, cntting edge of the forming roller to outthe periphery of the work sheet into shape, and means for moving thecntting roller away from the cutting edge of the forming roller topermit the for1ning roller t0 workythe shaped edge of the work sheetover the anvil roller to form a flange on the work sheet.

5. In apparatus of the character described, a frame, an anvil rollerrotatably mounted on the frame, a retaining roller cooperating withtheanvil roller to retain a work sheet therebetween, a forming rollersupported on a cutting roller cooperating with the spaced' 05 stantiallyright angles to the axis of the an- Vi1 roller and having 2L cuttingedge, a cutting roller having its axis substantally par- I allel withthe axis of the forming roller and cooperating wth said cutting ecIge toout the periphery of the Wlk sheet into 81121 39, and means for shiftingthe cutting rofier away from the cutting edge o f the fprming roller t0permit the orming roller to work 5910 the shaped edge of the work sheetover the anvil to form a fiange on said W01k sheet.

6. In apparatus of the character deselibed, a frame, an anvi1 rollerrotatably mounted on the fmrne, a retaining roller cooperating C withthe zmvil r0ller t0 retain a work sheet therebetween, a, f0rming rollerassociated with the anVil roller and having a cutting edge, a cuttingroller cooperating With the cutting edge of the forming roller to outthe periphery of the work sheet into shape, and

means for locking the cutting roller in cutting position ncluding meansfor moving the cutting roller aWay from the cutting edge of the formingroller t0 permit the forming roller to work the shaped edge of the worksheet over the anvil roller to form a flange on the work sheet.

7. In apparatus of the character described, a frame, an anvil rollerrotatably mounted 0 on the frame, a retaning r0l1er cooperatimg with theanvil roler and hzwing its axis offset to the axis of the anvil rollert0 retain a work sheet therebetween, a forming roller assocated with theanvil roller and -CB5 having a cutting edge, a cutcing rollercooperating with the cutting edge Of the forming roller to out theperiphery of the work sheet into shape, and means for movng theyouttngroller away from the cutting edge of 3 40 the f0rming roller t0 permitthe forming ro1ler to work the shaped edge of the work sheet over theanvil roller to form a flange on the work sheet.

In testimony whereof we affix our signa- C tures.

' EDGAR PRESTON.

OTTO N. GREDELL.

